Oil-distributer for roller-bearings



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T. J. TELLEPSEN & O. S. LOOKWOOD. '0IL DISTRIBUTER FOR ROLLER BEARINGS.

No. 596,093. Patented Dec. 28,1897.

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T. J. TELLEPSEN & C. S. LOGKWOOD. OIL DISTRIBUTER FOR ROLLER BEARINGS.

No. 596,093. I Patented Dec. 28, 1897.

Units TAT-ES THEODORE J. TELLEFSEN AND CHARLES S. LOOKWOOD, OF NEXVARK, NEW JERSEY, ASSIGNORS TO THE HYATT ROLLER BEARING COMPANY, OF

NEW JERSEY.

OlL-DISTRIBUTER FOR ROLLER-BEARINGS.

SPECIFICATION forming part of Letters Patent No. 596,093, dated December 28, 1897.

Application filed January 13, 189 7. Serial No. 619,045. (No model.)

To 00% whom it may concern.-

Be it known that we, THEODORE J. TELLEF- SEN and CHARLES S. LOCKWOOD, citizens of the United States, residing at Newark, county of Essex, State of New Jersey, have invented certain new and useful Improvements in Oil- Distributers for Roller- Bearings, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

The object of this invention is to furnish a novel means of connecting an oiling-flange with the rolls of a roller-bearin g in which two longitudinal guide-bars are inserted between the rolls to hold them parallel within their casing.

The invention is especially applicable to the roller bearings constructed under the patents of John W. Hyatt, N 0. 487,530, dated December 6, 1892, and No. 506,692,dated October 17, 1893, in which the rolls used to support the journal-are commonly formed of a tubular spiral spring which furnishes each roll with a longitudinal bore. The longitudinal guide-bars are extended between the rolls at opposite sides of the journal or casing, dividing the rolls into two groups, and the guide-bars are connected together by semiannular flanges or so-called yokes, which cover the ends of the half of the rolls. The ends of the remaining half of the rolls are uncovered and the bore is thus exposed, so. that a semi-annular oiling-flange may be applied to the ends of those rolls also and driven thereby by pins inserted in the bores.

In the present invention the casing is formed with a cylindrical seat for the rolls and in the lower part with an oil channel or reservoir into which the oiling-flange may dip. At the end of the cylindrical seat a chamber is formed of larger diameter than the seat to permit the rotation of the oilingfiange. Where the casing is made in one piece, as is common in car-axle boxes, the guide-bars (when formed with yokes at both ends) are commonly inserted into the casing from the front side, with one-half of the rolls fitted'between the two yokes, and in such construction the rear'yoke must be small enough to pass through the cylindrical rollseat and cannot be employed as an oilingfiange, as it does not project beyond the pe riphery of such seat. The front yoke may be made of any desired diameter and may thus be used as an oiling-flange, and by using rolls with a central hole in the end an auxiliary oiling-flange may be propelled by the rolls and may be applied to lubricate the inner ends of the rolls and of the seat upon which they revolve. This construction is shown in the annexed drawings, in which- Figure 1 is a longitudinal section of a rollerbearing provided with a guide having one of the yokes used as an oiling-flange and having an auxiliary oiling-flange also. Fig. 2 shows the bearing with the front cover and the auxiliary oiling-flange at the front end of the bearing removed to exhibit the bottom oilchannel. Fig. 3 is a side elevation of the guide combined with the oiling-flange. Fig. 4 is an end elevation of the same. Fig. 5 is a side elevation of one of the auxiliary oilingflanges, and Fig. 6 is an end elevation of the same. Fig. 7 shows the edge of the oilingfiange in section with a perforation extending through the same, and Fig. 8 is a similar section with a pocket having a small hole extended therefrom through the flange, Figs. 7 and 8 being upon a larger scale than the preceding figures. Fig. 9 is a view similar to Fig. 1 of a divided casing with plain tubular rolls filling the space between the guide-bars and similar rolls in section below the journal and the shaft extended through the bearing with enlargement upon its opposite ends.

A designates the casing, B the journal or axle fitted therein, and O the cylindrical seat for the rolls D.

E E designate cylindrical oiling-chambers formed at the ends of the seat, and F an oilchannel extended through the middle of the casing below the seat,between the chambers, and openly connecting the same.

G designates. the front cover of the box, which when removed Wholly exposes the rolls and oiling-flanges to permit their introduction and removal, and H in Fig. 1 designates an oil-inlet formed within the cover and connecting with the channel F. I is a plug or cap to close such inlet.

The guide shown in the bearing consists of longitudinal guide-bars J, which extend between the rolls at opposite sides of the journal and divide them into two equal groups,the ends of the bars being connected with arched yokes K K, which encircle the journal upon one-half of its circumference and cover the opposite ends of one-half of the rolls. The yokes are of semi-annular shape, the rear yoke K being of suitable diameter to pass loosely through the seat and not projecting to lift the oil,while the front yoke K is of larger diameter, so as to extend outward1ythat is, outward from the center of the shaft-into the chamber E. Such yoke forms an oilingflange, which is rotated about the journal by the rotary movement of the rolls against the guide-bars J and thus serves as an oil lifter and distributor, which raises oil from the bottom of the oiling-chamber and pours it upon the top of the journal and ends of the rolls.

The oiling flanges are preferably formed, as shown in the drawings, with a series of perforations L extended through the thickness of the flange and forming oil pockets, which are made to throw their contents toward the ends of the rolls by inclining the sides Z of the perforations next the journal toward the ends of the rolls. When the bearing is in operation, the channel F is filled with oil, as well as the bottom of each oilingehamber E E, and each rotation of the oiling-flange K carries it through the oil and upward above the shaft, thus lifting above the journal a great part of the oil which adheres to the flange and fills the pockets. Such oil lubricates the front end of the rolls and journal.

The rolls are shown tubular in the drawings, and such construction furnishes a convenient means of propelling an oiling-flange by means of pins inserted in the bores of the rolls to lubricate the rear ends of the same.

The rolls in the group upon the opposite side of the journal from the guide-yokes are shown at opposite ends thus connected with two oiling-flanges K by means of pins M, projected from such oiling-flanges a part of the way through the rolls.

Rolls having each a central hole at the end only would serve equally to admit such pins. The oiling-flanges having the pins are formed with peripheries adapted to move through the oil and lift the same, and although they are not attached to one another they are propelled simultaneously by the movement of the rolls.

The pockets are illustrated in various forms in the different figures of the drawings, the perforation which forms the pocket in the flange, as shown in Fig. 7, and the one at the left side of Fig. 1 being curved upon the outer side Z next the edge of the oiling-flange to assist in retaining the oil in the chamber. A similar construction is shown upon the oilingllange in Fig. 8 and at the right-hand side of Fig. 1; but the side wall of the pocket is perforated with only a small hole Z to discharge a small portion of the oil outwardly to lubricate the end of the journal B in contact with the cover G.

In Figs. 3 and 4: the sides of the pockets next the journal are shown beveled upon both the inner and outer faces of the oiling-flange, so as to throw a part of the oil toward the rolls and a part toward the cover G, that the end of the journal may be lubricated if in contact with the cover.

In Figs. 5 and 6 the outer sides of the pockets or perforations are formed without the curve Z. The rolls themselves are not capable of lifting any oil unless the lower surface of the seat is flooded with the oil, and where the charge of oil falls below such surface the lubrication would cease, while the oilingflanges shown herein extend outward beyond the seat and are thus not only enabled to pick up the oil at a lower point within the casing, but to carry it to a higher point than when distributed by the rolls themselves. The oiling-flange attached to the guide-bars J and also the auxiliary oiling-flanges are semi-annular in shape and are thus adapted for application to the middle of a shaft in cases where an annular flange cannot be passed over the end of a shaft.

In Fig. 9 the shaft is shown with enlargements B upon its opposite ends, which would wholly prevent the slipping of an annular flange upon the shaft, while the semi-annular flange which is used in the present invention can be applied at one side of the shaft, and thus furnish the bearing with an oil-lifting device. The casing for such shafts is divided horizontally.

In car-axle boxes and some other construe tions the pressure of the journal is exerted entirely upon the upper side, which requires the most lubrication, and the modification of the guide-yoke which is shown herein furnishes an oil lifter and distributor which adds no additional elements to each construction, while it serves to furnish a much greater supply of the lubricant to the upper side of the journal than can be carried by the rolls alone.

The oiling-chambersE E are shown of annular shape in the drawings-that is, truly concentric with the seat 0; but the shape of the chambers is obviously immaterial, as they are provided merely to furnish a space in which the oiling flanges may project outwardly from the journal and revolve around the same without obstruction and to retain the oil below the journal in the path of the flanges. The oiling-flange is a flat flange projected outwardly at right angles from the journal, andsuch simple construction enables us to utilize as a lubricating agent the flat annular yoke which is positively required to hold the guide-bars J parallel with one another. The use of such yokes necessitates a space between the heads of the casing of greater length than the rolls which lie between the yokcs,

-ment of the oil is controlled much more by the action of gravity than by centrifugal force. The small degree of centrifugal force which is developed under such conditions serves to retard in a beneficial degree the escape of the oil from the pockets where the bottoms are curved, as shown in Fig. 7, or the pocket is closed at one side, as shown in Fig. 8. A suitable degree of centrifugal force operates to retain the oil in the pockets until a considerable proportion of the oil is raised above the journal, at which point the operation of gravity upon the oil is facilitated by the inclination of the sides Z of the pockets,

. and the combined action of gravity and centrifugal force is thus utilized in the most effective manner.

We are aware that it is old to rotate a lubricating device of annular shape with the rolls of a roller-bearing; but our invention differs from such constructions in the use of semi-annular flanges, which are applicable to bearings intermediate the ends of a shaft as well as to bearings provided with the guidebars having semi-annular yokes.

WVhere an annular oiling device is applied to a shaft, it must be slipped over the end of the shaft, which in the case of many shafts is very difficult to eflect, because of couplings or other projections upon the ends of the shafts or the engagement of the shaft at its ends with other objects.

The guide shown in the annexed drawings has semi-annular yokes which embrace only one-half the periphery of the shaft and may thus be applied without difficulty to a shaft where the ends are not accessible or are enlarged, as is shown in Fig. 9. The auxiliary oiling-flanges shown herein are also of semiannular shape, as indicated in Fig. 6, and are thus as readily applied to the middle ofthe shaft as the guide having semi-annular yokes. It will therefore be understood that our invention includes the use of a semi-annular oiling-flange driven by the guides J or by the pins M, inserted in the bores of the rolls.

What we claim, and desire to secure by Letters Patent, is-

1. In a roller-bearing, the combination,with a casing having acylindrical seat for the rolls, and a chamber of greater diameter within the casing at the end of such seat, of a series of rolls fitted to the seat, longitudinal guidebars extended between the rolls at opposite sides of the casing, with a semi-annular oiling-flange attached to such guides at one end, and extended over the ends of one half of the rolls, and projecting outward within the chamber beyond the periphery of the casing, and operating as described, to raise and distribute the oil, substantially as herein set forth.

2. In a roller-bearing, the combination,with

I a casin g having a cylindrical seat for the rolls,

and a chamber of greater diameter Within the casing at the end of such seat, of a series of rolls fitted to the seat, longitudinal guide-bars extended between the rolls at opposite sides of the casing with semi-annular yokes attached to the opposite ends of such guides and extended over the ends of one half of the rolls, and the remaining half of the rolls having central holes with pins inserted movably in such holes and auxiliary semi-annular oilingflange attached to such pins, and extended outwardly into the chamber to lift and distribute the oil when propelled by the rolls, substantially as herein set forth.

3. In a roller-bearing, the combination,with the casing having a cylindrical seat for the rolls, and a chamber of greater diameter within the casing at the end of such seat, of a series of rolls fitted to the seat, longitudinal guide-bars extended between the rolls at opposite sides of the casing, with semi-annular yokes attached to such guides and extended over the ends of one half of the rolls, and one of such semi-annular yokes projected outwardly into the chamber beyond the casing to serve as a principal semi-annular oilingflange, the remaining half of the rolls'havin g central holes with pins inserted movably in such holes and an auxiliary oiling-flange attached to such pins and projected outwardly into the chamber, such principal and auxiliary oiling-flanges serving to distribute the oil at opposite ends of the journal, as the flanges are carried around the journal by the rolls, substantially as herein set forth.

4. A roller-bearing having a casing with a cylindrical seat for the rolls, and a chamber of greater diameter within the .casing at the end of such seat, a series of rolls fitted to the seat, to revolve around the journal, and a flat oiling-flange propelled by the rolls and projected outwardly into such chamber, and having perforations through the thickness of the flange to form oil-pockets to receive and lift and distribute the oil, substantially as herein 'set forth.

- 5. A roller-bearing having a casing with a cylindrical seat for the rolls, and a chamber of greater diameter within the casing, at the end of such seat, a series of rolls fitted to the seat to revolve around the journal, and a flat oiling-flange propelled by the rolls and projected outwardly into such chamber, and having perforations through the thickness of the flange to form oil-pockets, the sides or walls of such perforations next to the journal being inclined upon that'side of the flange next the ends of the rolls to discharge the oil from ing inclined as set forth, and the sides or Walls of the pockets next the edge of the flange being coneaved, as and for the purpose set forth.

In testimony whereof We have hereunto set our hands in the presence of two subscribing witnesses.

THEODORE J. TELLE'FSEN. CHARLES S. LOCKWOOD. Witnesses:

JAMES K. QUEALY, THOMAS S. CRANE. 

